Can certain diseases cause paranoia similar to that seen in individuals with paranoid schizophrenia, even if they do not have the disorder?
Last Updated: 30.06.2025 08:28

Head injury
Dementia and drug use cause paranoia. That is very common. Some of other things that can include delusions and/or hallucination can be:
⁉️sources from my experiences and internet research ⁉️
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Parkinson's disease
Alcohol withdrawal
Stress
Pharmaceutical drug (abuse or side effects)
Sleep disorders
Delirium tremens
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Fever
Narcolepsy
PTSD
Dementia with Lewy bodies
Infection
Brain Tumors
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Bipolar disorder
Alzheimer's disease,
Seizures
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Alcohol
Affective disorders
Charles Bonnet syndrome
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Mental disorder
Migraines
Grief (yes, sadly)
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Withdrawal from benzodiazepines
Hallucinogen use
Some of those things on the list are very very rare cases but I just wanted to cover everything (or almost everything).
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